INTERNATIONAL SCHOOL SIMPRUG Chemistry Assessment Task Student name : Class : 10 A Due date : 30 August 2010 Teacher : Ms. Merliani “How do chemical elements effect the environment” (1.236 words) Atmospheric pollution Most of the people live within the major cities where the evidence of pollution in the atmosphere can almost be seen daily. Your Task You will need to write an essay (700-1200 words) or prepare a presentation using the following guidelines
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One of the most popular habits in today’s society is smoking. Yet each year‚ cigarette smoking kills more Americans than AIDS‚ alcohol‚ car accidents‚ homicides‚ suicides‚ illegal drugs and fires combined. Smoking is an extremely bad pastime‚ practiced for centuries‚ for an individual’s health and those surrounding him/her. People start for many different reasons and get addicted to the nicotine in cigarettes. Smoking cause many fatal diseases‚ but help is available to those who seek it. Cigarette
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Depletion of the Ozone Layer * Function and location of the Ozone Layer The ozone layer is a portion of earth’s atmosphere that contains high levels of ozone. Ozone (O3) is a triatomic molecule consisting of three oxygen atoms. It is an allotrope of oxygen. Ozone is formed when oxygen molecules after absorbing ultra violet photon then converts a single O2 into two atomic oxygen radicals. The atomic radicals then combine with separate O2 molecules to create two O3 molecules. The main function
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gasoline‚ coal‚ or other fossil fuels. b) Carbon monoxide - A gas that comes from the burning of fossil fuels‚ mostly in cars. It cannot be seen or smelled. Sources: Carbon monoxide is released when engines burn fossil fuels. Emissions are higher when engines are not tuned properly‚ and when fuel is not completely burned. Cars emit a lot of the carbon monoxide found outdoors. Furnaces and heaters in the home can emit high concentrations of carbon monoxide‚ too‚ if they are not properly maintained.
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came out too late in the war to turn the tide of the war. Some of the things used to kill Jews in concentration camps were carbon monoxide showers‚ Zyklon B‚ and the gas chambers everyone knows about. The way that the carbon monoxide showers worked was instead of the shower pipes leading to water‚ it would lead to carbon monoxide. Obviously‚ since carbon monoxide is a poisonous gas‚ it would kill the person taking the shower‚ and an extra “bonus‚” no Nazi would directly take a life. Zyklon B was
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Alopecia areata Alopecia areata is an autoimmune disorder which is suddenly loss of hair ranges from random patches in scalp to entire body. Alopecia areata affects both female and male at any age. Whereas there are many treatments available‚ it is an incurable illness. Also‚ Alopecia areata may recurrence after treatment. In some patients‚ hair regrowth back‚ but some patients experience hair falls and others remains. Each cases is unique. Alopecia areata does not produce physical pain. However
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mass of nitric oxide‚ NO‚ is present in a 2.5 L flask at a pressure of 100 kPa and 0ºC? mole NO 2.5/22.71 0.1101 mol mass NO 0.1101 30 3.3 g 3 Carbon monoxide burns in oxygen according to the equation: 2CO(g) O2(g) → 2CO2(g) Calculate the volume of oxygen required at 25°C and 100 kPa for the combustion of 28 g of carbon monoxide. moles CO 28/28 1 mol
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our environment. (Godish) One of the main causes of air pollution is manufacturing. This source of pollution spews particulate matter and chemicals into the atmosphere. The exhaust from a factory includes‚ sulfur oxides‚ nitrogen oxides‚ carbon monoxide and dioxide‚ as well as volatile organic compounds and particulates. There is not an area of the Earth’s atmosphere or an ecosystem that has not been altered by the long term effects of the pollution created by manufacturing. Strides have been
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air. The exhaust gases from automobiles and factories add to the air‚ sulphur dioxide‚ carbon monoxide‚ carbon dioxide‚ nitrogen oxide‚ dust etc. Such polluted atmosphere causes acid rain. It is now calculated that the content of carbon dioxide in the atmosphere has increased by 25% in the last 100 years. The mean temperature of the atmosphere has increased from .3°C to .7°C during the period. Carbon monoxide leads to respiratory problems and acid rains due to sulphur dioxide damage crops‚ plants and
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Over time stress on the heart can weaken it‚ making it less able to pump blood to other parts of your body. Carbon monoxide from inhaled cigarette smoke also contributes to a lack of oxygen‚ making the heart work even harder. This increases the risk of heart disease‚ including heart attacks. Smoking also makes your blood thick and sticky. The stickier the blood the harder
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